package com.sky.controller.admin;

import com.sky.dto.DishDTO;
import com.sky.dto.DishPageQueryDTO;
import com.sky.entity.Dish;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.DishService;
import com.sky.vo.DishVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;

@RestController
@RequestMapping("/admin/dish")
@Api(tags = "菜品相关接口")
@Slf4j
public class DishController {

    @Autowired
    private DishService dishService;

    @Autowired
    private RedisTemplate redisTemplate;

    //清理缓存数据通用方法
//    private void cleanCache(String pattern){
//        Set<String> keys = redisTemplate.keys(pattern);//keys()方法用于获取所有符合条件的key
//        if (keys != null) {
//            redisTemplate.delete(keys);
//        }
//    }
    //新增菜品
    @PostMapping
    @CacheEvict(cacheNames = "dishCache", key = "#dishDTO.categoryId")
    public Result add(@RequestBody DishDTO dishDTO) {
        log.info("新增菜品：{}", dishDTO);
        dishService.saveWithFlavor(dishDTO);
        //清理缓存数据
//        String key = "dish_" + dishDTO.getCategoryId();
//        cleanCache(key);
        return Result.success();
    }

    //菜品分页查询
    @GetMapping("/page")
    @ApiOperation("菜品分页查询")
    public Result<PageResult> page(DishPageQueryDTO dishPageQueryDTO){
        log.info("菜品分页查询：{}", dishPageQueryDTO);
        PageResult pageResult = dishService.pageQuery(dishPageQueryDTO);
        return Result.success(pageResult);
    }

    //批量删除菜品
    @DeleteMapping
    @CacheEvict(cacheNames = "dishCache", allEntries = true)
    @ApiOperation("批量删除菜品")//RequestParam注解用于获取请求参数使SpringMVC例如将1，2，3根据逗号分隔解析Long存入List中
    public Result delete(@RequestParam List<Long> ids){
        log.info("批量删除菜品：{}", ids);
        dishService.deleteBatch(ids);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        //cleanCache("dish_*");
        return Result.success();

    }

    //- 根据id查询菜品
    //- 根据类型查询分类(已实现)
    //- 文件上传(已实现)
    //- 修改菜品

    //修改菜品实现
    //1.根据id查询菜品和对应的口味数据
    @GetMapping("/{id}")
    @ApiOperation("删除菜品")
    public Result<DishVO> delete(@PathVariable Long id){
        log.info("删除菜品：{}", id);
        DishVO dishVO = dishService.getByIdWithFlavor(id);
        return Result.success(dishVO);
    }

    //2.执行修改菜品
    @PutMapping
    @ApiOperation("修改菜品")
    @CacheEvict(cacheNames = "dishCache", allEntries = true)
    public Result update(@RequestBody DishDTO dishDTO){
        log.info("修改菜品：{}", dishDTO);
        dishService.updateWithFlavor(dishDTO);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        //cleanCache("dish_*");
        return Result.success();
    }

    //根据分类id查询菜品
    @GetMapping("/list")
    @ApiOperation("根据分类id查询菜品")
    public Result<List<Dish>> list(Long categoryId){
        log.info("根据分类id查询菜品：{}", categoryId);
        List<Dish> list = dishService.listByCategoryId(categoryId);
        return Result.success(list);
    }

    //菜品起售停售 如果执行停售操作，则包含此菜品的套餐也需要停售
    @PostMapping("/status/{status}")
    @CacheEvict(cacheNames = "dishCache", allEntries = true)
    @ApiOperation("菜品起售停售")
    public Result updateStatus(@PathVariable Integer status, Long id){
        log.info("菜品起售停售：{},{}", status, id);
        dishService.updateStatus(status, id);
        //将所有的菜品缓存数据清理掉，所有以dish_开头的key
        //cleanCache("dish_*");
        return Result.success();
    }


}
